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1. 发明授权

US06667564B1 Mechanically-commutated DC motor 有权
标题翻译：机械换向直流电机
公开(公告)号：US06667564B1
公开(公告)日：2003-12-23
申请号：US10225245
申请日：2002-08-22
申请人： Tanh M. Bui , Bruce Q. Du , Jeffrey D. Mobley
发明人： Tanh M. Bui , Bruce Q. Du , Jeffrey D. Mobley
IPC分类号： H02K100
CPC分类号： H02K23/42 , H02K5/148 , H02K23/62
摘要： A mechanically-commutated DC motor has a mechanical commutation system and an “inside-out” configuration, in which the stator assembly comprises the windings and the rotor assembly comprises the permanent magnet. The motor includes a rotor assembly, a stator assembly, a plurality of terminating conductive pads, and positive and negative stationary power supply terminals. The stator assembly includes a plurality of lamination stacks positioned around a central aperture and a plurality of copper coils, each coil being wound around one of the lamination stacks. The rotor assembly includes a rotor body with a permanent magnet ring and a non-conductive timing cam integrated into one face of the rotor body. The permanent magnet ring is radially magnetized in an alternating polarity pattern with at least one pair of poles. The mechanical commutation system comprises the timing cam integrated into the rotor assembly, the power supply terminals, and the conductive pads. There are the same number of conductive pads as stator coils. Each conductive pad has first and second flexible contacts selectively movable into and out of electrical contact with the positive and negative power supply terminals, respectively, in response to the action of the timing cam. Adjacent ends of adjacent coils terminate on a common conductive pad, so that the ends of each coil terminate on two different conductive pads, and each conductive pad receives the ends of two different coils.
摘要翻译：机械换向直流电动机具有机械换向系统和“内外”结构，其中定子组件包括绕组，转子组件包括永磁体。电动机包括转子组件，定子组件，多个终端导电焊盘以及正和负固定电源端子。定子组件包括围绕中心孔和多个铜线圈定位的多个层压叠层，每个线圈缠绕在叠片堆叠之一上。转子组件包括具有永磁体环的转子体和集成在转子主体的一个面中的非导通正时凸轮。永久磁环以至少一对磁极以交替极性图案径向磁化。机械换向系统包括集成到转子组件中的定时凸轮，电源端子和导电垫片。与定子线圈相同数量的导电焊盘。每个导电焊盘具有分别响应于定时凸轮的作用而分别与正和负电源端子电接触的第一和第二柔性触点。相邻线圈的相邻端终止在公共导电焊盘上，使得每个线圈的端部终止于两个不同的导电焊盘上，并且每个导电焊盘接收两个不同线圈的端部。

2. 发明授权

US06847179B2 Actuator position control with signal sensing 有权
标题翻译：执行器位置控制与信号传感
公开(公告)号：US06847179B2
公开(公告)日：2005-01-25
申请号：US10222971
申请日：2002-08-19
申请人： Bruce Q. Du , Tanh M. Bui
发明人： Bruce Q. Du , Tanh M. Bui
IPC分类号： G05B19/19 , G05B11/06
CPC分类号： H02P7/2913 , G05B2219/37168 , G05B2219/37171 , G05B2219/41329 , H02P7/0094
摘要： An actuator position control system for brush-type DC motors. The system includes a sensor, amplifier or differentiator, central control unit (microprocessor), and motor driver. The system utilizes the differential signal di/dt to indicate the falling edges of commutation spikes in the motor current profile. In a first embodiment, an inductor is selected as the signal sensor, because voltage drops across the inductor are directly proportional to di/dt. The voltage drop, L(di/dt), across the inductive sensor is input to the amplifier, amplified, and then sent to the microprocessor. In a second embodiment, a sensing resistor and a differentiator are substituted for the inductive sensor and amplifier, respectively. The microprocessor reads the output pulses from the amplifier or differentiator and compares the pulse count to an input command signal. The microprocessor then sends shaft position control information to the motor driver.
摘要翻译：一种用于刷式直流电动机的执行器位置控制系统。该系统包括传感器，放大器或微分器，中央控制单元（微处理器）和电机驱动器。该系统利用差分信号di / dt来表示电动机电流曲线中的换向尖峰的下降沿。在第一实施例中，选择电感器作为信号传感器，因为电感上的电压降与di / dt成正比。电感传感器两端的电压降L（di / dt）被输入到放大器，放大后发送到微处理器。在第二实施例中，感测电阻和微分器分别代替电感式传感器和放大器。微处理器从放大器或微分器读取输出脉冲，并将脉冲计数与输入命令信号进行比较。然后微处理器将轴位置控制信息发送到电机驱动器。

3. 发明授权

US06437533B1 Actuator position control with inductive sensing 有权
标题翻译：执行器位置控制与感应感应
公开(公告)号：US06437533B1
公开(公告)日：2002-08-20
申请号：US09923438
申请日：2001-08-08
申请人： Bruce Q. Du , Tanh M. Bui
发明人： Bruce Q. Du , Tanh M. Bui
IPC分类号： G05B1101
CPC分类号： H02P7/2913 , G05B2219/37168 , G05B2219/37171 , G05B2219/41329 , H02P7/0094
摘要： An actuator position control system for brush-type DC motors. The system includes a sensing inductor, amplifier, central control unit (microprocessor), and motor driver. The system utilizes the differential signal di/dt to indicate the falling edges of commutation spikes in the motor current profile. An inductor is selected as the signal sensor, because voltage drops across the inductor are directly proportional to di/dt. The voltage drop, L(di/dt), across the inductive sensor is input to the amplifier, amplified, and then sent to the microprocessor. The microprocessor reads the output pulses from the amplifier and compares the pulse count to an input command signal. The microprocessor then sends shaft position control information to the motor driver.
摘要翻译：一种用于刷式直流电动机的执行器位置控制系统。该系统包括感应电感，放大器，中央控制单元（微处理器）和电机驱动器。该系统利用差分信号di / dt来表示电动机电流曲线中的换向尖峰的下降沿。选择电感作为信号传感器，因为电感上的电压降与di / dt成正比。电感传感器两端的电压降L（di / dt）被输入到放大器，放大后发送到微处理器。微处理器读取放大器的输出脉冲，并将脉冲计数与输入命令信号进行比较。然后微处理器将轴位置控制信息发送到电机驱动器。

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